| Summary: | 碩士 === 國立臺灣科技大學 === 電機工程系 === 103 === This thesis proposes a low-cost torque control and estimation for an electric hand tool. Resistances are used to estimate the output torque of the electric hand tool, but no torque sensor or Hall current sensor is required. A PI controller is used to achieve the goal of screwing the objects tightly. In addition, the implemented system provide the functions of setting torque command and display the estimated torque as well.
A digital signal processor, TMS320F2808, is used as a control center to execute the current control algorithm, torque estimating algorithm, and screwing the objects. Experimental results validated the correctness and feasibility of the proposed method.
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